Finally, one should also mention the Extremely Large Telescope (ELT), expected to come online in the next decade, with its second-generation High Resolution Spectrograph (HIRES).
While it does not cover H \(\alpha \) , its Integral Field Unit (IFU) is sensitive to \(1.0\) –1.8 \(\) m at \(R\approx 100,000\) –\(150,000\)  ([1]}, [2]}, [3]}), which includes shock emission lines such as Pa \(\beta \)  [4]} and He i \(\lambda \)  10830. Thanks to this high resolution, it could also be a powerful help in characterising accreting planets.
